Total Commander

It's the standard panel refresh of TC. TC rebuilds the file panel permanently, no idea why ghisler does that.
I have scrolled with PageDn by the way...

Icfu

2icfu

It's the standard panel refresh of TC. TC rebuilds the file panel permanently, no idea why ghisler does that.

If this would be true why do you claim the listbox control is the problem?

Where have I stated that the listbox is the problem for the flickering?

But, you may be right, as ghisler likes flickering as a signal:
http://www.ghisler.ch/board/viewtopic.php?p=122696#122696

I can create really cool stroboscope flashes when keeping the cm_CopyPathToClip hotkey pressed.

Icfu

2icfu

Where have I stated that the listbox is the problem for the flickering?

Well you start your first post with a hint to another thread where Ghisler wrotes that the listbox is faster than a listview. Then you start listing things which should prove the opposite. Flickering is one of them. After all I thought this is what this poll is about.
Beside that can you give me a hint why do think the panel is refreshed while scrolling? I don't want to claim it isn't true but it sounds very strange to me.

Lefteous wrote:Beside that can you give me a hint why do think the panel is refreshed while scrolling? I don't want to claim it isn't true but it sounds very strange to me.

I think you should direct this question to Ghisler. In my movie, I did not use cm_CopyPathToClip. And the listbox flickered.
ADDED: For me it doesn't look like refreshing. It's rather loading icons. But Explorer here is faster.

I think you should direct this question to Ghisler.

Would be great to hear an oppinion from Ghisler but I'm not going to ask him that. He never claimed refreshing is the problem - it's up to icfu to prove his assertions.

For me it doesn't look like refreshing. It's rather loading icons. But Explorer here is faster.

Well there are several icon options. You could try do disable icons completely and see if the same effect can be observed.

After all I thought this is what this poll is about.

This poll is about speed differences. The flickering is an annoying side effect of which I don't know if it's a problem of listboxes in general. I can only do assumptions.

Beside that can you give me a hint why do think the panel is refreshed while scrolling? I don't want to claim it isn't true but it sounds very strange to me.

http://ghisler.ch/board/viewtopic.php?p=124510#124510

>only the current lines are available.

With refreshing I have meant that I can watch TC calculating what to paint next while it paints it.

I haven't meant a refreshing like with Ctr+R as this needs 5 seconds in that 30000 files directory. A scrolling in this case would be impossible...

You could try do disable icons completely and see if the same effect can be observed.

The panel even flickers when no icons are shown. No difference at all.

Icfu

With refreshing I have meant that I can watch TC calculating what to paint next while it paints it.

Ah ok - I really thought you are talking about refreshing the directory contents. Sounds as if you are talking about a repainting issue.

Added another answer above. Yes, repainting, thanks! I'll try to remember that word.

Icfu

The below linked test program can be used to find out if using a listbox control could be the reason why some users have speed issues when using TC. The program populates a listbox with an user-definable number of items. The listbox used is an owner-drawn control. I didn't optimize the painting of items at all so I guess you'll see same flickering as in TC.

http://www.lefteous.de/tc/misc/listboxspeedtest.zip

I'm curious how long it takes to populate the listbox on your computer. On my computer the average result is 0.125 seconds for 30000 items. That is ~240000 items per second. I'm working on a Pentium 4 2.6 Ghz (4 years old) and Windows XP Pro SP2.

It needs 1.422 seconds. There are no scrolling problems, it's as smooth as Altap.

Icfu

icfu wrote:It needs 1.422 seconds. There are no scrolling problems, it's as smooth as Altap.

Icfu

0.125 s. No scrolling problems.

I'm curious how long it takes to populate the listbox on your computer.

Duron 1,1 GHz, 384 MB SDRAM, Matrox Marvel G400 with XP Pro SP2 internal drivers:
0.130 seconds.

Roman

What is really new to me is that the listbox actually scales quite fine. If have added 10.000.000 items in a test and it took about 38 seconds which are still more than 250000 items per second.
So it seems the data organziation seems to be more important than the control itself.

I have never seen anything like that before

Me neither